My number is not activated for iMessage

Re: "My number is not activated for iMessage"

Turn on iMessage

1. Go to the Settings app  on your iPhone.
2. Tap Apps, then tap Messages.
3. Turn on iMessage.
4. To select which of your phone numbers and email addresses you want to use with iMessage, tap Send & Receive, then choose from the available options below “You can receive iMessages to and reply from.”

Above is from: Set up Messages on iPhone - Apple Support which has more ifo. if needed.

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If you need more help:

Re: :"what can I do if my number is not activated for iMessage"

Apple support's online artiicle (link below) has activation trouble-shooting tips that may help:

If you can’t turn on or sign in to iMessage or FaceTime on your iPhone – Apple Support (AU)

Try following the advice in the above linked article on:

• Activation error messages
• " What you need before signing in"
• and, if needed, there's much more trouble-shooting